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Note 7 - Income (Loss) Per Share | 12 Months Ended
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Dec. 31, 2016
Notes to Financial Statements |
Earnings Per Share [Text Block] | NOTE 7 INCOME (LOSS) PER SHARE The following table reconciles the income (loss) and average share amounts used to compute both basic and diluted income (loss) per share:
|  | Twelve Months Ended December 31, |
(Amounts in Thousands, Except for Per Share Amounts) |  | 2016 |  |  | 2015 |
Net income (loss) attributable to Perma-Fix Environmental Services, Inc., common stockholders: |  |  |  |  |  |  |  |
(Loss) income from continuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | (12,675 | ) |  | $ | 814 |
Loss from discontinuing operations attributable to Perma-Fix Environmental Services, Inc. common stockholders |  |  | (730 | ) |  |  | (1,864 | )
Net loss attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | (13,405 | ) |  | $ | (1,050 | )
Basic loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | (1.15 | ) |  | $ | (.09 | )
Diluted loss per share attributable to Perma-Fix Environmental Services, Inc. common stockholders |  | $ | (1.15 | ) |  | $ | (.09 | )
Weighted average shares outstanding: |  |  |  |  |  |  |  |
Basic weighted average shares outstanding |  |  | 11,608 |  |  |  | 11,516 |
Add: dilutive effect of stock options |  | ─ |  |  |  | 6 |
Add: dilutive effect of warrants |  | ─ |  |  |  | 30 |
Diluted weighted average shares outstanding |  |  | 11,608 |  |  |  | 11,552 |
Potential shares excluded from above weighted average share calcualtions due to their anti-dilutive effect include: |  |  |  |  |  |  |  |
Stock options |  |  | 150 |  |  |  | 183 |

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